Slackware :: Changing Ip Address On The Fly?
Aug 20, 2010
If I need to adjust my network settings (rc.inet1.conf) on the fly, like if I need to be in the local network of a router I just bought (192.168.1.x), in order to change the subnet to the rest of my network (192.168.0.x), then I need to adjust the ip address of my slackware box. Up till now I have rewritten the rc.inet.conf file and then restarted the computer. I am almost positive that restarting is unneccesary, but I have not been successful in finding any other method. Maybe I am using the tool wrong, but I have tried using wicd to disconnect and then connect again once I change the rc.inet1.conf. I don't think it worked. I think I have also tried issuing a rc.inet1 restart. But I don't think that this changed my ip address either. How do you change your ip address on the quick without restarting your box?
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Apr 12, 2011
I'm running Ubuntu server. To change the IP while I'm sitting in front of the computer, I would:
1. edit /etc/network/interfaces
2. ifdown eth0
3. ifup eth0
Remotely, I can do the first two no problem, but the ifup command causes some problems since the ethernet interface is no longer functioning. Is there some kind of script that can be written for this purpose? Maybe something that will check eth0 every so often and make sure it is running and bring it up if it isn't. Or else a script run with nohup?
I do not intend that changing the IP address will be a frequent occurrence, but when it needs to be done, it must be done reliably and without the possibility that the computer will no longer be reachable for more than a couple minutes or so.
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Jul 21, 2011
If I change the primary ip address for DNS, do I need to reboot the server?
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Mar 14, 2010
I am coming across a strange error with my gateway. When I do a "ping", this is what I get below:
k-63a5b848c6cb4:~ # ping simba
PING simba.gateway.2wire.net (192.168.1.69) 56(84) bytes of data.
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=1 ttl=64 time=0.041 ms
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=2 ttl=64 time=0.029 ms
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=3 ttl=64 time=0.023 ms
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=4 ttl=64 time=0.015 ms
Is the gateway doing something strange?
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Dec 8, 2010
My ISP allows only one computer so I have to change the mac address.
On the other computer I use ubuntu and I've changed my mac address with both ifconfig and macchanger. The internet still doesn't work, it doesn't find the connection.
What should I do ?
[URL]
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Sep 3, 2010
Why changing of mac address isn't recommended? The possible reasons that I can find is:
1) it can break firewalls
2) it can break some DHCP implementations ?
Is there any other reasons that I have missed ?
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Jan 24, 2011
I have a school project that requries me to bypass MAC filtering by changing my MAC address.I changed my mac address through the following:
Code:
sudo service network-manager stop
sudo ifconfig wlan0 hw ether 00:11:22:33:44:55
[code]....
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Sep 30, 2009
Router: Linksys WRT54GS
NIC: D-Link DWA-645 (RangeBooster N 650 NoteBook Adapter)
i have successfully changed my MAC address. By doing:
ifconfig wlan0 down
ifconfig wlan0 hw ether AA:BB:CC:11:22:33
ifconfig wlan0 up
When I do:
ifconfig wlan0, it shows my new MAC address.
After changing, I cannot connect to the Internet. I have already disable mac filtering in my router. What did I miss out?
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Mar 1, 2011
in our server, Fedora 10 64 bit in this,IP Address is automatically changing Actually IP Address is 192.168.1.50 it changing frequently.if i try to edit that to normal it is not showing options. net mask is also is changing from 255.255.255.0 to 24 After reboot the system ,through LAN it is accessible .But not through the network.
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Jun 7, 2010
Is there any way where I can change the "from" address in the maillogs without
changing the envelop sender.
We have email users using smtp-auth with multiple email accounts but authenticating against single user account.So whenever a user sends mails through our server from any one of his multiple mail accounts,I want to be able to change the "From address" to the user he is authenticating against instead of the "from address" which he supplies, in the maillogs.
We have mimedefang running on our system,I tried using things like change_envelope_sender functions,but it only changed the envelope sender and did'nt change anything in the maillogs.
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Aug 28, 2009
this seems silly but I am changing ISPs and need to change my notification email address (for here). Under User Menu -> Edit account it shows my email but does not allow me to change my email. Since I am able to post I assume I am logged in correctly. So what did I miss?
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Jun 24, 2010
I am doing a test on MAC learning and for that ,I need to change my MAC address of linux machine while the interface is UP. To be more clear, consider eth1 in a fedora core 8 machine. And while the interface is UP. I am running a script which changes the MAC address from 10:1:1:1:1:1 to 50:50:50:50:50:50 (i.e 50 times MAC address is changed) . When I try to change the MAC address when the interface it UP, it gives me the following error :
siocsifhwaddr : device or resource busy
I know the way of changing the MAC address by bringing down the interface but I need to know if this can be done while the interface is UP.
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Mar 31, 2009
I need to know what the Iptables "code" is to change the outgoing/Incoming IP for port 53 (DNS). I'm running CentOS on a dedicated server. I very familiar with Putty and SSH. So I don't need much details, I just can't figure this out. I asked my server providor but they deleted my ticket and didn't answer me.I tried this but am not sure if this correct of working?
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Feb 21, 2009
I am using Fedora 10 and when I first installed my machine, I had a DHCP assigned address to my network card. Later on I decided that I wanted to give my machine more of a server role, so I switched to static IP using the system-config-network utility. What happened after that was that I did change the IP address and routing information, but DNS information gets lost at every reboot, so I need to type it back again.
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Jun 23, 2011
I've two WLAN AP's with both a different IPv6 subnet. When I change from one AP to the other, my IPv6 Global address stays valid and so is the default IPv6 gateway. After a while I get another Global address from the second AP's subnet and another default IPv6 gateway for the second subnet. Both have the same metric. IPv6 connectivity is broken now. When I disable wireless on the laptop and reenable it, it flushes all IP addresses and receives new ones and connectivity is restored. Does anyone know if this is normal behaviour or should it normaly flush all the addresses when changing network? It's a bit silly to have to disable/enable wireless all the time..
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Nov 25, 2010
I just installed Enlightenment from slackbuilds, but I'm not sure how to change over to it. Not trying to permanently switch to E, just wanting to play with it some, and use it when I need to free up resources from KDE4. How can I switch between the two?
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May 22, 2011
Alsaconf doesn't recognise any sound cards on my system, although the sound still works and can be changed with alsamixer. The USB speakers work perfectly well in KDE, where I can use the KDE utils to switch between the USB and built-in speakers. So I need a way to do the same thing from the command line without alsaconf or to get alsaconf working.
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Nov 16, 2009
when running XFCE, changing the font in qtconfig fails to change fonts in KDE apps such as ktorrent and koffice. This is rather annoying because default KDE fonts are excessively large and blurry on my monitor. Is there any way to force KDE apps to obey qtconfig settings?
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Sep 9, 2010
I got a Slackware 12.1 on a Dell Inspiron 1525 laptop which is a multi boot system along with Vista and Ubuntu Hardy. I tried using Slackware after several months. The last time I used Slackware, I was at university where the Network settings were Manual - Static IP, Gateway, DNS all specified according to location (dorm room). I moved out of univ and now have a network connection with DHCP. Basically I connect to a server, login with the info the service provider has given me.
Problem is I can't change the Network settings through Control Center in KDE. It just doesn't register any changes even if I reboot. Through Konsole and as root, I could change the settings using netconfig. But then I need a reboot to register the changes. Why is this so? Anyway to avoid a reboot? In my Ubuntu Hardy, there is no need for a reboot when I change the settings. Thats quite convenient.
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Feb 12, 2011
I am having a problem getting my Slackware 13.0 to accept a timezone cmos setting change. My cmos was set to local time and my Slackware was displaying the correct time as EST. Cmos was set localtime to be compatible with dual booting Windows I have now removed Windows and replace it with Ubuntu. Now, Ubuntu wants the hardware clock to be UTC, which is the norm for unicis. SO, lets make Slackware treat the hardware clock as UTC.
I go to /etc/hardwareclock make these changes.
utc
#localtime
I reboot setting cmos to UTC, but now when I come up Slackware displays UTC and calls it EST. I go to the date/time app under the system xfce menu, but all it says it is set to UTC (EST) and change from the list below. The list below only has UTC listed. So, now how do I get it subtract the necessary five hours?
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Apr 8, 2011
I have a problem about my eth. i have 2 network cards. my problem is after i boot my computer with -current my eth0 keep changing number, why this happen? im not using dhcp and i assign an static ip in my eth0.
Code:
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May 11, 2010
I have a machine running Slackware 13. Recently I had to modify network settings on it and now I cannot ssh into that box from my local LAN using machine's name. I can only ssh by using its IP address.I searched the forums, Google, but I cannot find the solution.
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Jun 22, 2010
The times aren't staying the same when switching between Slackware and Debian. When the time is right in one, it's wrong in the other.I've spent some time reading about this sort of thing, but this particular problem...
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Feb 16, 2010
after successfully installing Slackware 13, I immediately installed other packages mainly to solve display/freezing issues(see below), I noticed that every time I try to change the display resolution - both from the 'system -> system settings' and from the "plasmoid" -
my mouse cursor would disappear.
now I know it's on the pointer, and not the mouse - I can move the mouse and see "mouse-over" activity, and based on seeing this, even clicking(both left and right) still has effect. In fact, if I were patient enough, I could navigate through my desktop.
note:
I have a Intel 82865g integrated graphics controller, had issues after installing, so I upgraded to the 2.6.32.3 kernel and installed:
fx86-video-intel-2.9.0
libdrm ? 17 ?
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Jun 7, 2010
I have a slackware server running ISC dhcpd and bind, and I want to give a dual boot XP / Ubuntu client a fixed address based on its MAC.
I added a host stanza to my server's dhcpd.conf:
Code:
I restarted bind and dhcpd, restarted the client's networking, and it still requests (and receives) its previously leased address, which is not the fixed address I want it to get. I tried dhclient -r to make the client release the old address, didn't help. On networking restart it still gets offered the old (wrong) address. Could it be that dhcpd somehow hangs on to the old lease even after the client sent a DHCPRELEASE?
How do I tell dhcpd to forget about an old lease, and how do I make dhcpd hand out the fixed address (and only that address) I specified for a given MAC, regardless of what the client requests?
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Jul 21, 2010
1) I'm not sure which IP address to use when I list my machine name in /etc/hosts, particularly after reading:
Quote:
By the w]ay, Arnt Gulbrandsen <agulbra@nvg.unit.no> says that 127.0.0.1 # should NEVER be named with the name of the machine. It causes problems # for some (stupid) programs, irc and reputedly talk. :^)
Here's what I have now:
Code:
root@eagleswing:~# hostname
eagleswing
root@eagleswing:~# cat /etc/HOSTNAME
eagleswing.5binc
[Code]...
I'm not certain how to include my router in /etc/hosts so I can use it to link my PCs as stated above. I was thinking of writing (see above link):
192.168.2.1 localbelkin Will this work & is it proper?
3) Do I need to make use of any other IP addresses at this link? What are the WAN IP & Default Gateway addresses used for? I am going to be serving documents & running scripts on Apache.
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Feb 8, 2010
My wife takes her laptop on her travels but recently has been getting a connection refused when attempting to connect to our home server. The only reason I believe this is occurring is because of iptables blocking certain IP addresses which I don't want to delete for SPAM prevention.
What configuration what be both secure and relatively straight forward. Initially configured mac filtering but then realised this would not be appropriate under these circumstances..
Also there is no specific logging in either postfix or dovecot about connection refused.
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Nov 1, 2010
Slackware 10.2. My usb ports work fine when used directly. When I insert a USB hub to duplicate a port I get the message USB device not accepting new address=2 error=-71
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Dec 5, 2010
I have currently installed Slackware 13.1 64bit version on a laptop Acer computer. This computer is connected to my cable service (comcast) modem via a dlink router. This computer has linux and Windows 7 dual boot systems installed. Initially I was able to connect to the internet with either linux or Windows. Now I cannot get on the internet with linux, but I can with windows.
I cannot even ping the address of my internet provider,which I can obtain through windows 7 by running the program ipconfig. When I ping the address, in linux,it gives me the message that "network is unreachable".I can ping it in windows 7.If I run on linux the program ifconfig, it does not even show an ethernet, like it does on my other computer connected to this network.I set the thing up initially with netconfig and used DHCP.As I said, initially it worked.I did not use this computer for some time, and now it has the previously described problems.Where should I start, trying to run this down?I have already done everything I can think of,like powered things off, and reset the cable modem etc.
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Apr 16, 2010
If I have a dnsmasq server and it dished out a IP address that I don't want it to and it still gives it to my machine no matter how many times I restart windows and issue ipconfig /renew|release or enable/disable the adapter, how do I force it to give my windows machine an IP I want it to have?
The only way I've accomplished this in the past is by rebooting my slackware system.
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